Fireproof door.



T. P. SHEAN.

FIRBPROOF DOOR.

APPLICATION FILED MAR.29,1910.

992,812, Patented May 23, 1911.

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T. P. SHBAN.

FIREPROOP DOOR.

APPLICATION FILED MAR. 29, 1910.

992,812, Patented May 23,1911.

3 SHEETS-SHEET 2.

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` y FIREPROOF DOOR*l APPLICATION FILED MAR.29, 1910. f 992,812. Y Patented May 23,1911.

3 SHEETS-SHEET 3r I i i I1 HummIMImM-m*MHV-"HI THOMAS P. SHEAN, F CHICAGO, ILLINOIS.

Specification of Letters Patent.

rrnnrnoor noon.I

Patented May 23, 1911.

Application filed March 29, 1910. Serial No. 552,7201.

To all whom 'it may concern:

Bo it known lthat l. Tironnxs P. SHEAN, citizen of the United States, residing` at Chicago, in the county ot Cook and Stato ot Illinois, have invented certain new and useful Improvements in Fireproof Doors, of which the following is la specification.

rlhis invention relates to improvements in fire-proof doors having spaced or hollow Walls constructed from sheet-metal With a filler of asbestos between the' ialls.

The paramount objects of the particular improvements which form the subject matter of this application, are as follows z-To provide a sheet metal door composed of hollovv stiles and rails so.V interlocked that re.- taining bolts rivets or screws are not required to maintain them in their assembled relation; to so construct or form and arrange the members coniposingthe door that they can be quickly assembled byv sliding together the complete units Without requin ing special assembling tools or holding devices; to provide means by which quick and easy access can be had to the lock-stile for the purpose of inserting, removing or repairing locking devices arranged in said stile; to provide forms of interlocking flanges whereby the stiles and rails will bc effectively held against separation from expansion due to excessive heat; to provide a construction whereby nearly all edges of the metal pieces forming the various members, shall be within the walls of said members; to provide a rigid and strong construction without lateral openings for the passage of' heat or flames, in which the joints may be concealed by, welding and pointing, and in which the surfaces 'of the Stiles, rails and panels may remain plane or be embellished by moldings as may be desired.

Having the aforegoingand other objects Yin View, I have invented. the door hereinafter described in detail, and illustrated in the accompanying drawingsfforming a part of this application, and in which Figure 1 is an elevational view of a door constructed according to my invention with portions broken away Ato more clearly disclose the construction and arrangement of various members; Fig. 2 is a vertical crosssection on the line 2 2 of Fig. 1; Fig. 3 is la horizontal cross-section on the line of Fig. 1; Fig. 4 is a fragmentary detail in front elevation at the upper end of the lock- .outer andinner sides, respectively,

stile; Fig. 5 is a vertical cross-section` through the upper part of the lockvstile showing a removable closure-plate in position; Fig. 6 is avertical cross-section of the upper part of the hinge-stile with a fixed lclosure-plate in place; Fig. 7 is a perspective view of the removable closure plate; Fig. S'is a perspective view of the fixed closure plate; Fig. 9 is a frzign'ientary perspective view of the bottom rail; Fig.` 10 is a perspective View of the lock stile. showing portions of the interlocking members in partially assembled relation; Figs. 11 and 12 are fragmentary views showing the ot' a portion of a lock rail, and Figs. 13 and 14 are, a side and end view, respectively, of the rail shown in Figs. 11 and 12. Figs. 4 to S) and 11 to 14, inclusive, are drawn 011 a scale somewhat larger than the remaining figures.

Referring to the details of the drawing,

10 represents the lock-stile, 11 the hingestile, 12 the top-rail, 13 the lock-rail, 14 the bottom rail, 15 the upper panels, and 16 the lower panels which constitute the main members forming, when properly assembled, my improved door.

17 represents the removable stile-end closure and 18 the fixed stile-end closure, which with the members above named co1nplete the door structure.

The lock-stile 10 is formed from a single piece of sheet metal bent to the rectangular, in cross-section, form shown, and of such size and proportions that it extends the full height of the door and represents the maximum thickness thereof". YThe longitudinal marginal portions of this stile are bentl inwardly and rebentupon themselves to form hook-shaped, in cross-section, flanges 10b. The upper ends of the sides of the stile are cut to extend beyond the ends ot' the meeting face and flanges, and are bent inwardly and rebent to form double flanges 10C, shown in Figs. 4 and 5. In the meeting face of the stile, at its upper end, are cut slots 10a, for a` purpose to be disclosed. The lower end of the stile is cut ofi' square all around and is without flanges or slots.

rl`he hinge-stile 11 is formed from a single sheet of metal bent to the same form and proportions as the stile v10 and has inturned longitudinal flanges 1lb corresponding to ythe flanges 10 of the stile 10. but is without flanges at the upper or lower end, and has ,no slots or other openings cut 1n its i a T l sides. The top-rail 1Q is also formed from a single piece of metal Aben, .sulastantially,`

...1.1- .az 4. amid. I, i*

the saine rectangular cross. ional area and the lower faces 12 of this rail are bent upwardly asiat-12.*. andthe .wheat ureaztheiaa selves( to forni flung which par-all to the upturned portions spaced therefrom to provide a slideway for the up per inaijginsof the-l panels 115. f 'The 'side' portions of thetop-i-ai'lfare tcut t'o'feX- tend beyondethe ends a-ndfaiejfbent fllhwardly 'as ati/12andithenrebentfitoiform hookshaped flanges whiclilinterlock with the 4longitudinal fiali'igles 10", 11"-t vof-tl'ie lock and hinge-.Stiles respectively f- A. w

The lt'i'ek'ilrai-li is'ifoiti'nedeinltwo sections 13, ofidenticalconstruction, 'arranged upon oppositieI sidesy 'ofttle"door,-`= 4k"Each section is constructedfroiiraf singvlegpiece of metal bent [into i l para'llelgram ff forni, in cross-section. The innerlsifde loffeach' section is open along 'the 'middle linerforining a longitudinal slot pan-els 115,116.

the; inargii'is 'ofwhich are bent to lie paralleli ivith-said-'i'nner side and spaced therefron'rtofforin'a hooked flange 13a which re- 'ceives'thel corresponding margins of the i The end portions 13b of each sect'ionaie bent inwardly and then rebent `outwardly to form hook shaped flanges 13 which lie arallel to the portions 13, and at ajslight distance therefrom to provide a slide-way and interlock for the flanges 10b fand 11" of the lock and hinge stiles.

The bottom rail 14 is identical in form and construction with the top-rail 12, the only difference being that its position is reversed. The said rail 14 has inwardly extending portions 141 forming its upper faces and these portions are bent downwardly and then rebent upon themselves to form the spaced flanges 14", 14, to provide a slideway for the lower margins of the panels 16. The side portions of this rail, as in the case of the upper rail previously mentioned, are cut to extend beyond the ends and are bent inwardly, as at 141 and then rebent to form inwardly turned hook-shaped flanges 14 which interlock with the longitudinal flanges 10, 11", of the lock and hinge stiles, respectively.

The upper open end of the lock stile 10 is closed by a plate 17 having its rear portion 17a extending beyond the stile and into the cavity of the top rail, where it lies in apposition with the under face of the upper side of said rail, as shown in Figs. 1 and 2. The plate 17 (see Fig. 7) has its lateral margins bent downward and then rebent upon itself, the extreme edge being again bent downward between the other portions, forming a double hooked flange 17d, which interlocks with the flange 10 of the lock stile, as clearly shown in Figs. 4 and 5. The plate 17 is secured in position by screws time areeiigiiay .i which pass through holes 11g in said plate rand engage threaded holes in a block 171 st\ci`ii'e"l""by' rivets 17i to the inside of the shape as the stiles. The portions foiuinngg.

eelt-.stile at the top. In the center of the llate 17 is a hole 17f for the insertion of a ,hook or other tool to facilitate the removal of the plate. The extension portion 17a has *riveted to the underside, a reinforcing block 17b provided with a central screw hole 17 the purpose of this block being to provide a sullicient hold for the screw 17k. The lower ends of the lock-stile and both ends of the liinge-stile are closed by plates 18, each having an extension 18a projecting into the adjacent end of the corresponding rail, in the same manner as the extension 17 of the plate 17. The plate 18 has on three sides, flanges 18b which tit within the stile ends. These plates are secured in lace when assembled by soldering or weliling along the joints between them and the top and bottom edges of the stile and thus form permanent closures for the stile ends, in contradistiiiction to the plate 17 which is removable for the purpose of giving access to the interior of the lock-stile 10 whenever desired.

The panels 15, 1G, are alike upon opposite sides of the door and differ from each other in respect to their longitudinal dimensions only. Each of said panels consists of a single plate, having its lateral margins provided with tianges the extreme edges of which are rebent upon themselves to form with the flanges 10", 11b, of the lock and hinge Stiles respectively, and their upper and lower margins are received in the slideways previously described as being formed by the rebent margins of the members 1Q, 13, and 14.

The manner of assembling the units comprising the completed door, is illustrated in Fig. 10, which shows the lock-stile and top rail in assembled relation, the flange 10b of the stile being interlocked with the hook flange 12 of the rail. Immediately below the said rail but separated therefrom arc the two spaced apart upper panels 15,y having their hook shaped tianges 15a interlocking with the flanges 10i of the lock-stile. This interlocking engagementl is produced by sliding the said panel flange over the lower end of the stile flange, and moving the panel longitudinally on the stile until its upper margin enters its seat between the tianges 12, 12. of the top-rail. Below the upper panels are seen the sections of the lock-rail with their hooked end llanges 13", 13, engaging the stile flanges 10", the assembling being doiie by sliding the rail-flange upon the lower end of the ysaid stile flanges 10"` as in the case of the panel. and the hooked tianges of the remaining panels and the bottom rail are in like manner slid upon hook shaped members 16 which interlock the said flanges 10P. It will be understood that the members intermediate the top and bottom rails may be assembled upon the stiles before the said rails are placed in position, so long as the said members are arranged in proper relation, with each other, and the top and bottom rails may then be y assembled.

three of' the closures 18, placed at the bottom of each stile and atthetop of the hinge stile. The open end of,y thelock stile is closed by applying the plat e17and -the lscrews inserted in the holes 17gV and 17C.

These screws are dependedwupon to secure the plate in position, novwelding or solder` ing being used inconnection with this plate. This closure may thus Vbe removed at any time by taking out vthe screws andL withdrawing the plate by means of a hook `inserted in the hole 17, the slots 10a permitting the passage of the flanges 17d. After the door has been puttogether in the laforesaid manner, any moldings suited to the requirements may be applied and the entire structure then coated with paint inthe usual manner.

It will be obvious that the plates" 17 may be used at all corners of the doorlin which case, the result will be'a knock-down structure. Vhen so made the door can be shipped in a knocked-down? condition and then readily puttogether and secured by the screws, or the plates may be soldered in place as described for the plates18, and the door then painted,f"thus producing. a complete door, finished and secured in as desirablev a manner as if assembled in the factory, and this procedure may be accomplished by any one having ordinary mechanical skill, since t-he soldering may be done by a tinner using ordinary tools found in all tin shops.

It will be noted that the stiles and rails are open along the median line toward the interior of the door and through these openings the interior of these members all communicate with the space between the panels upon the opposite sides. To increase the heat resisting power of the structure this entire space is occupied b v a sheet of lireproof material 19, asbestos board being preferred for this purpose.

Having thus described my invention, what I claim is:*`

1. In a fire-proof structure including a hollow metal stile and a hollow metal rail connected therewith, said stile being open at its end', a closure for said stile and means for detachably connecting said closure with said rail and with said stile.

2. In a firepr'oof structure including a hollow metal stile and a hollow metal rail, said stile and rail :having interenga ging marginal flanges and saidstile being open at one end, a closure for said stile, said closure comprising a metal plate having a portion projecting into and detachably secured within the rail and another portion fitting said stile opening and detachably secured therein. 3. A-door comprising hollow met-al stiles provided with openings, hollow metal rails interlocking with ysaid stiles, panels interlocking with the stiles, and removable elo'- sures fitting said stile openings and engaging said rails.

4. Ina door, the combination of hollow metal Stiles, having open ends, hollow metal rails interlocking with the stiles, metal panels interlocking with the stiles and engaging the rails, the panels upon opposite sides of' the door 'being spaced apart, a filling of fire- -proof material arranged between said panels and the walls of said stiles and rails, fixed closures for some of the stilekk ends and a re- 'movable closure for one of the stile ends.

5. In a door,'the combination of hollow metal stiles having open ends, hollow metal rails adapted to slidably engage the stiles and interlocking therewith, panels slidably f engaging the st1les and rails and interlock- 1 ing with the Stiles, a removable closure slidably engaging the end of one of the stiles, and fixed closures for the other ends of the Stiles.

6. In a metal door, `a hollow lock-stile, a hollow hinge-stile and hollow rails connecting said Stiles, each of said stiles and rails formed from a single piece of metal bent to provide interlocking flanges whereby the edges of said flanges and the openings between the o posed flanges of each member will be within the walls of said Stiles.

7. In a sheet metal closure, hollow-Stiles, each formed from a single piece of metal having inwardly extending side flanges, hollow rails, each formed from a single piece of metal having end flanges adapted to interyslide and interlock with the side flanges of the stiles within the latter, and means for retaining said stiles and rails in their assembled relation.

8. In a sheet-metal closure, hollow Stiles, having inwardly extending side flanges, hollow rails having outwardly extending end Yflanges adapted to slidably engage and interlock with the flanges of the stiles within the Stiles and readily detachable means for rel taining said stiles and rails in their assembled relation.

9. A sheet metal structure comprising hollow side members having inturned double flanges along their longitudinal edges, hollow ernss-n'iembeis having outwardly turned double llnng'es :it their ends adapted t0 intei'lneli with the said linngres of the side inenibelS. nnd having' in 'tudly turned denble llnnges :dongtheir longitudinal edgex, panels having their Side edges intel'- lueliing' with Suid lhinges 0f the; side nieml bers and lumped by the longitudinal flanges of the crons members. und ntenns for In testimony whereof I affix my signature in the presence of two witnesses.

THOMAS P. SHEAN.

rimesse/s H. DELOS HUMAN, F. BENJAMIN. 

